LAS VEGAS--(BUSINESS WIRE)--Leading Hollywood studios, consumer electronics brands, content distributors, post-production and technology companies announced today the launch of the UHD (Ultra High Definition) Alliance – a new coalition of companies united to set the bar for next generation video entertainment by establishing new standards to support innovation in video technologies including 4K and higher resolutions, high dynamic range, wider color gamut and immersive 3D audio. The UHD Allianc